The New Blue Blast Led Fast Curing Light features 10 second curing and user defined settings From 10, 20 , 30, 40 for all curing and bleaching procedures. Ramp curing mode increases power gradually during the first 25% of the selected timing cycle when activated. Digital timer read out shows the Count down as time passes. The unit comes with light guide, an 8 mm Tip. 1 year warranty.